What is Netstat – Troubleinthepeace

What is Netstat?? What is netstat used for?? This must be the question of many people when using the network. To be able to explain the above questions, the following article we will provide you with detailed information about the syntax and meaning of this Netstat command. Let’s explore together!

What is the Netstat command?

Netstat (network statistics) is a command line tool used to monitor incoming and outgoing network connections available on all operating systems, especially they are available on Windows. Netstat is useful in troubleshooting network problems and measuring Internet performance. It is also one of the most basic network service debugging tools, letting the user know which ports are open and any programs that are listening through the ports.


Find out what is the Netstat command?

Simply put, it’s a program designed to display the information needed to handle network-related errors. This is also a cross-platform program. This means that they work on Linux, OSX, Windows, etc.

Is a software testing method, used to check the data input and output direction of the system. So used by testers as a black box. That’s why black box testing is something you need to know as a software manager.

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Some outstanding features of the Netstat command:

Displays inbound and outbound connectionsShows routing tablesShows network protocol statistics

Meaning of the syntax of the Netstat command in Windows

The working syntax of those statements is: netstat <-a> <-e> <-n> <-o> <-p > <-r> <-s> <>. In which the parameters are described as follows:

-a: Displays all active TCP connections and the TCP and UDP ports on which the computer is listening.

-e: Displays specific Ethernet network statistics such as the number of bytes and packets sent and received. This parameter is usually combined with -s

-n: Displays active TCP connections, but addresses and port numbers are represented as numbers, not a specific name.

-o: Displays active TCP connections and includes the process ID for each connection. Users can search for applications by looking up the PID on the Processes tab in Windows Task Manager. The -o parameter can be combined with -a, -p, and -n.

-p: Displays the connection for the protocol specified by Protocol. In this case Protocol can be tcp, udp, udpv6, tcpv6. If this parameter is used with -s to display statistics according to the protocol, the Protocol can be tcp, icmp, udp, udpv6, icmpv6, ip or ipv6.

-S: Displays statistics by protocols. By default, statistics are displayed for TCP, IP, UDP and ICMP protocols. If IPv6 protocol is installed, statistics will be displayed for TCP over UDP over IPv6, IPv6, ICMPv6 and IPv6. This parameter can be used to specify a set of protocols.

-r: Display the contents of the IP routing table (IP routing table): This information has the same meaning as the in route command.

After every second, all selected information will be displayed again. Press Ctrl+C to stop that rendering. If this parameter is omitted, the Netstat command prints the selected information only once.

/?: Display help at command prompt.

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How to use the Netstat command on Windows operating system

Note the rules for writing standard Netstat commands:

All parameters used with this command must begin with a hyphen (-) instead of a slash (/).

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The Netstat command provides statistics for the following objects:

Names of protocols (TCP or UDP).Local address. Typically the IP address of the local computer and the port number being used. Also the name of the local computer must correspond to the IP address and the name of the port will be displayed unless the -n parameter has been specified. If the port is not set, the port number is displayed as an asterisk

.Remote Address: IP parameters and port number of the remote computer to be connected. The remote computer names corresponding to the addresses and port numbers are displayed when the -n parameter is specified. If the port is not set, it will show as an asterisk

. Possible connection states are: CLOSE_WAIT CLOSED ESTABLISHED FIN_WAIT_1 FIN_WAIT_2 LAST_ACK listEN SYN_RECEIVED SYN_SEND timeD_WAIT. This status indicates information about the TCP connection.

This command can only be used if the Internet Protocol (TCP/IP) protocol is set as a component in the properties of the network adapter (Network Connections).



Netstat commands used on Linux operating system

What is the purpose of the Netstat commands?

The following information will help you better understand the purpose of the Netstat command on Windows operating systems. Specifically it is: Show all connections and listenShow details of connection progressShow Ethernet network card statistics. Show routing table informationShow full, detailed Domain Name (FQDN).Show remote host IP address (no domain resolution required)Show process ID information in 1 connectionShow connections connect via protocolShow statistics of protocolsShow all information over time… With the information in the above article, you probably already know

What is Netstat?

and how to proficiently use Netstat program on Windows operating system. This job can completely help you deal with network problems on Windows / Windows Server operating systems, so what are you waiting for to learn how to use basic Netstat commands! In addition, if you have any questions regarding cheap hosting, email servers, security certificates, etc., please read other articles on webgiaidap.com’s blog!Source: internet

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